Nigeria Customs Service is the steward of the nation's trade and border management faced with the enlarged role to perform at the highest levels, to facilitate legitimate trade in a global environment harbouring a litany of threats.

The Agency was established primarily for the administration of Maritime Safety, Seafarers Standards and Security, Maritime Labour, Shipping Regulation, Promotion of Commercial Shipping and Cobatage activities, Pollution Prevention and Control in the marine environment, the Agency also implements domesticated International Maritime Organization (IMO) and International Labour Organization (ILO) Conventions.

Port Health Services in Nigeria started in 1925, in response to the plague pandemic.

The Port Health Services is deployed through a division in the Public Health Department of the Federal Ministry of Health

The Division has the responsibility of implementing the WHO International Health Regulations, the International Maritime Organization’s (IMO) laws on health matters, the International Civil Aviation Organisation (ICAO) laws, the Nigeria Quarantine Act (aircraft and ship), the Public Health Laws of Nigeria and any other relevant laws.